Grease-separator.



W. J. BALDWIN n J. M. TAGGART. GREASE SEPABATOR. APPLICATION FILED APR. a, 1913.

1,1 1 9,565., Patented Dec.1,1914.

UNiTED STATES 'PATENT OFFICE.

WILLIAM J. BALDWIN, or BROOKLYN, am) 'Jamas u. resem, or naar w-ILLis'roN, 'y

NEW` YORK.

1 amsn-snrana'ron.

This invention re ates to improvements ingrease separators.

It is the purpose ofthe invention totprolvide apparatus for the removal of oil and greasy matters, which for brcvit we herein# after designate by the term oi from exhaust steam, so' that the steam, after the re- `moval of said oil, may be the more suitable for various commercial -p oses, as for making `articial ice,

ing purposes, for supplying steam boilers and for other purposesfor which the use o greasy, oily water is' unsuitable. l l

It is the further purpose of the invention Il -to provide for collecting and preserving the oil, so that it may be again utilized, yand also so that it shall not 4clog drains or cause other injurious results.

We accomplish the several purposes by 80 causing the exhaust steam containing the o'il to be projected upon the surface of clean water, to which the 'oil adheres by reason of its rilinity for the water; the steam being ther by 85 by its proper outlet to condensei's or other alpparatus. In order that the operation of t 'e grease' separator may be continuous, it is necessar-y from oi be continuously 40 incoming steam; and in or er to' effect this result it is necessary that the oil which ,has

beenl previouslyl brought into'l vthe separatori' shall` be continuously carried away I from contact with the successively entering 'ex'- haust steam, and that the saido'ilsslall be revented from forming a' film over the surace ofthe clean water. We eeet the removal of the oil from the path' Ao'f the incoming steam, and prevent the-forming of such W filmv of citen the surface of the clean water,

by the use 'of pans, preferably a plurality, ,locatedwithin the closed shell of the separator' and directly ,in the path of the incoming exhaust steam, and substantially. concentric to" said inlet of the 'exhaust-steamfoythatf Specification M Lettfciai Patent. i A ppu'eauon mea apra s, 191s.- serial No.' 758,514. y

for' drying and heat- .feature of our invention.

freed from thegoil and then goingV that a clean water surface, free 'resented to the PatentedDec. 1, 1914.

- the steam .projects ht/cons'liderable velocitydirectly on the surface of the water in the pans; the impact of steam on the surface ofthe water producing a sur e or wave vand flow radiallya'nd outwardly rom the center .so

, over allparts of the edges of the pans, whereby the oil, which was in the eX aust steam, 1s caught upon the surface ofthe water in the pans and carried outwardly over the edges of the pans, being. finally collected on 65 the surfaceof the water in the body of the separator outside of the pans and carried-l away its proper oil outlet. Thus, also, the 4sai radial waveor surgel continually presents clean water to the incoming steam, and there resultsl acontinuous separation of oil from. the steam; whereas, if there were not the aforesaid radial wave o-r surge\and flow of the water over the edges of the pans, the water inthe path of the incoming steam would-soon be coated with. such a film ofA oil that 1t would not properly take up more oil from the incoming steam, and the separation of the oil from the steam would be impaired. Therefore the continuous radial 80 outward flow of the greasyfwatei is a valuable aid in the continuous and ez'ective" separation of the oil from the exhaust steam, and the means .to effect it isa'n important...

. To collectand/'preserve the o'il provisionA is made for draining it oi separately from g the water which condenses in the 'se arator',

as will be hereinafter explained. Ot er features and details of the invention are also 9o I illustratedI in the accompanyin drawings' and will be hereinafter descrihedg. I

I teferrin to said dnawings, to aid the de'- scription, igur'e 1 `is an elevation' of a grease separator having aplurality of pans;

Fig. 2 isaV horizontalsection and plan ofthe same .on the planeet the line -22 of Figi.' 1;" Fig: 3 is avh'orizontalsection and plan ofthe same onthe plane f the lineal --'ofFic 1.- .i i i A is ay closed vessel constitu g the body ofthe grease separator, 'made lof material of suic'i'entv strength to sustain any desired pressure.

"Said vessel is preferably, but' not necessarily, of cylindrical `horizontal cross'l section, and isprovided with 'an inlet nozzle orpipe a, which may beconnected with a pipe supplying exhaust steam to the i `vesselA. A conoidalde lectvB mayfbe secured at the inneriend ci said inlet a, to 11o All . .steaxnfrom the said inlet a to the outletb'9 andftel insure :the -spreadingof the exha'ust .steam radially in alld'directions. One or more 4pansis orare located insaid Vessel A, `below said inlet a, 'and in the patli of the entering yexhaust steam. ln small grease 'Separator"s: .asin'glepan may be employed, butin largerigrease'sepalators it isnrefer.- 10v able to use ai plurality of pans'; 'an three such;A kans;.respectiyely indicated by C, D. f and L are-illustrated in. Fig. -1- of the said. drawings;i Said pans CyD.' and E are sup-I ported inany suitable manner, as by legs as:- villustrated, andA v are-. preferably, but. .not necessarily, arranged .concentrically to the axis of said exhauststeam inlet a, .and the upper ;edges of said pans' are progressively lowerfrom the innermost to the `outermost panyaszinldicated-inlig. I. The upper edge of each pan. is also; preferably, but not neeessarily, -leyel, soth'at .there sli'allbe an 'overflow- .o;f.;.oil' *and water' evenly oyer all parts of the ledge olfeach pany fand vfalsoa radial motionof. the water- ."and1 oil outwardly to-s.' wardall'parts of Said edge@ In Fig. vl said pans,- C, D and. E,1 are 4shown as each. haying own A.closed .bttomg'but :the .pansmight-be inadegfi--desired with one' coin-V mon bottoni.;y it onlybeing necessary that the top edges of :thepans be .progressively lo'wer; fromv the innermost tothe.` outermost pans; -and. the;.pens.mightfialso oany other suitable shape"withoutfdeparting'i-rom-v .our'inyent'ifr'lnA j frequently desirable :to-supply fresh It' water-1tothefpansffiii-fadditin to the waterwhich `is p''reclpitatedv 1n them from .thein- Cmingfexhaustf-Steam g. 'and this ymay be etl @greeted by .conneaiag a; Ysupply pipe i. wat

the innermost Gyas indicated `1in: Fig.` l, z' being a.-nalyeonfsagidpipelietoV control the' supply'ofifreslt water; andfsaid *pipe-'l being connectedf with.' any suitable. water su 'pplyky Said pipe :can also .be arrangedzby-luse of: .l "props .valves;@ligand-branches, if desired,'- to' servev both. -asj'drain-and as awater supply. pipefto. facilitate cleaning the l" To prod-uc'eith most. eflicient an regular operetinkof .the e paratus fthe 'level' of :the waters-iw sai v .vessel-A :should begunifermi andethisfis'f effectedby the overdew F',

' i nhieh-isf'pefrablyconstructed-with the.'

dowliwardilranchanvhich descends into the@ water below "th leaelj at which? the oil willi .j collect,- .ndfrzy'aitli' the-:upwardbranch .11 f, 'tov preventsiphin yThe said overdoen -F i A mayzbeconnectedcwithasuitable pipe leadin 'to any.v desired places-,To draw '0E-:thas

A is. provided; located at the 'water'. level as lects on the.surfacegof the watersin yesselA,

'andis'drawn'fod bysaidcoek'u s5- -H is maquetas proviene.

. exhaust-steamgan from -Which--thevcil-has .separatedlalo 1 .magnet j with'la suitable yaly'e, and means of Wliicli the contents ofthe vessel A may be drained ed' and said vessel A be cleaned.i e, exhaust. Stcamlentering by inlet a projects The apparatus operates as follows.:

'directly uponthe water in Asaid pans C, D and E,'and the oil separates from the steam 'and collects on the surface of thewater in thepans., .-The limpact of the incoming exhaust steam-, with its contained condensed water and oil,` upon the surface of the 'wa- .ter in the paus vcau-ses the accumulating oily water lto surge anddow continuously'A radiallyv outwardly and vover' the edge of.: each pan, thereby continually carrying thel oil \away from the path. of the incoming steam, and continually presenting clean wa`. ter tov the incoming steam, -so that the separation of the oil from the steam is cony tinuous.- The steamfrom whichthe foil-hasA separated goes bythe outlet b to the desired .place of use.J The' oil collects on the top Aof the watenin the main' body of the vessel A, l outside .of the pans'and vout of contact with the incoming'steam, andis drawn'o' freinv 9&1;

. bedrawn-.offbylsaidcock G., and that-'the 150i 'water will never rise in said Avessel A so hi h as -to coversaid gans C, D or E.

'own having descri edourimlprovements; We claim as our .invention. S

:1. 'lhe combination in a-grease separator .1w of a closed 'vesselgroyided with an inlet for 5 exhaust steam, an withan `cutlet for steam `from vwhich-fthe oil -has .been yseparated, a-

pan substantially concentric i te saidl inlet;

and in the direct pat h o f the exhaust steam, i6 and adapted .to contamflwatergto 4catclr the' oil from said steamgcand anoiloutlet-fromi .said vessel at `a lower'level'.than-the-surface.. "of 'said pan,

lbstantially' as described.v

v2-.2 Thecomb'iilationl a grease'separatorl 11.5 ofa closedvessel rovided with an inlet for exhaust steam; an ;with.an.out1et for from which` the voilY hasbeen'separated', a-

pan. substantially concentric y to said inlet and in the direct path ofthe .exhaust steam 11o and adapted Vto contain water to' catchvthe oil from s'aidsteam,-Jan eil outlet trom-said!A vessel v'at a lowerlevel. than the-v surface of v said pan', and a non-csiphoninge'verdcwvfro1n.`

said'. 'vessel at the "sameflevel assaid `oil 'outffl'f let-, substantially 'as .describeds l V,

determincdbysaidoverow F5 The oil col-1v 3.v 'The combination in a grease'separatorf of.. al closed 'Vessel royldd with: anl inlet forl l with azi-outlet for steam pan substantially concentric to said ,inlet and in the direct path of the exhaust steam and ,adapted to contain water to catch the oil from said steam, an oil outlet from said vessel at a lower level than the surface of said pan, and a non-siphoning overflow from said vessell at thevwsame level as said .oil outlet, and a conoidal deflector on said inlet for exhaust steam substantially con. centric to said inlet and locatedbetween said pan and said'outlet for steam from which lthe oil has been separated, substantially as described. i,

4. The combination in a grease separator,

of a closed vessel provided with an inlet for exhaust steam and with an outletfor steam A:from which oil has been separated, a plurality ofpansin the direct path of the -incoming kstealn substantially concentric to said exhaust steam inlet and the upper edges of said. pans being successively lower from theainner to the outer pan, andan oil outlet from' said vessel at a lower level than the water surface of the lowest pan, substantially as described.

` 5. The combination ina grease separator, of a closed vessel provided with an inlet for exhaust steam and with an outlet for steam from-,which oil has been separated, a plu-l rality ofpans in the direct path of the incoming 'steam substantiallyI concentric to saidexhaust vstean inletand the uppfer edges of said pans being successively lower from of a` closed vessel. provided with an inlet lfor 5' exhaust `s team and with an'outlet for steam from whlch oil' has vbeen separated, a plurality of pans in thedirect path ',.of the' incoming steam substantially concentric to said exhaust steam inlet and theA upper edges of said pans being'successivelyklower from the inner to the outer pan, an oil outlet from said vessel at a lower level than the water surface of the lowest pan, a nonsiphoningoverflow from said vessel at the e same level as said oil outlet, and af conoidal ldeflector on said inlet for exhaust steam substantially concentric thereto andlocated be-' tween said pans and said outlet for steam from which the oil has been separated, substantially as described.

`Signed at New -Yor'k city, in the county of New York and State of New York this 25th day ofMach, A. D. 1913.

WILLIAMJ. BALDWIN. JAMES M. TAGGART.

Witnesses:

V ISAAC P. STORM,

WALTER NL, 

